1. There are one hundred thousand million stars in our own Milky Way alone, and then there are three thousand million other Milky Ways, or galaxies, in the universe. So the number of stars that we know exist is now estimated at about 300 million million
    仅我们的银河系就有1000亿颗星，况且在宇宙中还有30亿个天河，即银河系。因此，我们所知道的现有恒星数目估计约有30亿X1000亿颗。

2. Recent developments in astronomy have made it possible to detect planets in our won Milky Way and in other galaxies.
    天文学方面最新发展使得我们能够在银河系和其他星系发现行星。

3. There are three thousand million other Milky Ways, or Galaxies, in the universe.
    在宇宙中有30亿个其他银河系或天河。

4. I like milky coffee.
    我喜欢喝牛奶咖啡。